Shaft-coupling



(No Model.)

H. K. KRIBBBL.

SHAFT GOUPLING.

N0. 304,110. Patented Aug. 26, 1884,.

llE l UNiTnn, strates Parana* @risica HOSEA K. KRIEBEL, OF lll-TEST POINT, PENNSYLVANIA.

SHAFT-COUPLING.

SPECIFICATION forming part of Letters Patent No. 304,110, dated August 26, 1884.

(No model.)

To all whom/ it may concern:

Be it known that I, Hosnld. Kninnnr., of the town of West Point, Montgomery county, and State of Pennsylvania, have invented a new and useful Improvement in Couplings, of which the following' is a specification.

My invention has reference to shaft-couplings; and it consists of a shell or drum having two conical faces, both pointing in the Same direction, but not coincident with each other, in combination with clampingjaws having conical faces arranged to work against the conical faces upon said drum, and in details of construction, all of which is fully set forth in the following specification and shown in the accompanying drawings, which .forni part thereof.

Heretofore couplings have been made with two split cones or jaws tapering in opposite directions, and working in a properly-shaped drum, the said cones being drawn together to clamp the shaft; or they have been made with a single cone, equivalent to one-half of the coupling first referred to; but in these couplings, to Inaketlie taper slight, by which greater clalnpingpower is attained, it is necessary to make them very long if the clamping-bolts are to pass through said conical jaws; or they inust be provided with extensions, iianges, or lugs, through which said bolts pass, which latv ter construction is defective, as the strains are not transmitted in a man1 er to produce the most e'ective clamping action, and the parts are liable 'to bind more or less, and thereby eliminate what would otherwisel have been useful results.

The object of my invention isthcreforc to overcome these defects by the construction hereinafter fully set forth,whereby the clamping-bolts are enabled to act in a line between the two conical faccs,to the en d that the strains are transmitted equally along the entire pair of jaws and in a line with their movement, being substantially balanced upon each side of the said bolts; also, to enable the length of the coupling to be reduced to a minimum length without losing any of the advantageous effects resulting from the use of conical surfaces of small angles; and, finally, to simplify the construction of couplings, and so iorm it that it docs not Wei gh more than about twothirds as now in the market.

ln the drawings, Figure l is a sectional elevation of a coupling on line x x of Fig. 2, embodying lny improvements, and Fig. 2 is an end elevation of saine. l

A A are the two ends of the shafts to he coupled.

B is the coupling drum or cylinder, and is provided on one end with the conical face C, and upon the other with a head, D, having its inner edge also made conical, as at C', which faces are as if made vfrom the same cone, or have the saine Obliquity; but their surfaces are not coincident with eachother, as is indicated in dotted lines.

E E are the clamping-ja ws, and one of their ends have flanges G, the outer faces of which are made conical or tapering, as at F, and are made to work in contact with face() on drum B, and the other of their ends are provided with conical faces F', which work in contact with faces C on the said drinn. By this means the space between the head D and flange G is hollow, and the tightening-boils H are passed through the iangesG, and screw into the head D in a line preferably between the conical faces l" and ll", continued ns indicated in dotted lines.

I I are pins carried bythe jaws E, which enter the shalt ends to prevent them turning therein. In place of these pins,l keys may be used. The jaws E E may he made integra-l, if desired, by .not splitting the 'ilange G entilely across.

The distribution ol' niet-al. may be modified in any nnlnner te suit the fancy or taste, or to strengthen the coupling, and the saine principle may he used upon inclined faces which are not conical, and is within the scope of my invention. the construction shown, as it maybe modified in various ways without departing from the spirit of iny invention.

Having now described niy invention, what I claim as new, and desire lo secure by Letters Patent, is-

l. A coupling consisting of a shell or drum having two conical faces, both pointing in the same direction, but not coincident with each other, in combination with clamping-jaws havl therefore do not limit myself to ing conical faccs arranged to work against the conical faces nnon. said drinn, substantially as and l'or tlic pnrposc spccilvd.

2. A connliiig consisting of a slicll oi.` drinn having two conical 'accs,bolh pointing in llic saine dii'cctloii, biit not coincdcnt with cach other, in combination with clanipi iig-j aws hav- ".ng conical faccsl arrangoi'lto work against Llic conical faces upon said drinn, and bolls or screws to lforce said jaws inlo said drinn, substantially as and for thc purpose siwcillcd.

3. A coupling consisting ol` a shcll or drinn having Two conical faccs,bo1li pointing in ihn saine direction, but not coincidcnt with cach other, in combination willi clinnpi iig-jaws hav ing conical l'iiccs arrangifd to work against lhc conical l'accs npon said drinn, pins iipon siiiil jaws, and adapted to cnlcr apcrtiiriis in thel shaft to ncvcnt thc lat-ici* turning` in said coupling, and. bolts or scrcws to lorcc said jaws into said drinn, siibsl initially as and l'or thc purpose si cci (ind.

4. A coupling or clamp-body having two inclingcd surfaces, thc inclinations olwliicli being substantiallyparallcl, bnl no1 coincidcnt or in the sainc plano, and a jaw having l'accs corrcspoinling` lo said inclined faccs ol' thc body, substantially :is and Al'or llio piirposc inclincd surfaces, llic inclinations of which bcing substantially parallel, but not coincident or in llic saine plano, and a jaw having faces corrcsponding to said incliicd 'l'accs ol' thc body, and a bolt or scriiv to l'orcc said jaw inlo said body, finbslantially as and 'for thc p inposc specified.

llic :oinljnnalion ol' drinn l, having in# clincil l'iiccs (l i parallel biit not in thc saine blanc, with jaws E, having faces F F, corrcspondii'ig with faces C C', substantially as and l'or thc purpose s pccil'icd.

7. '.lliix combination of drinn ll, having in clinoil .l'iiris C U parallel but .not in thc sanic plane, wil li jaws ll, having faccs F F', corresponding wil'li l'iiccs (l C', and bolts H, Sul)- sianlially :isv :ind l`or thc pnrposc specified.

'llie combination of drinn l, having head l) and inclined vl'zices C', parallel' but not in thc sinne plane, with jaws E having flange GV and l'iircs 'lil F', corrcspondiing with faces C C', and bolts ll, substantially as and for thc purpoSc Spocilicd.

ln Lcstiinony ol' which invention l hcrcnnlo sot my hand.

IIOSEA K. KRIEBEL. 

